Jean-Martin Charcot: the polymath / Jean-Martin Charcot: o polímata

Abstract Jean-Martin Charcot, widely regarded as a leading founder of modern neurology, made substantial contributions to the understanding and characterization of numerous medical conditions. His initial focus was on internal medicine, later expanding to include neuropathology, general neurology, and eventually emerging fields such as neuropsychology and neuropsychiatry. Furthermore, Charcot's intellectual pursuits extended beyond medicine, encompassing research in art history, medical iconography, sociology, religious studies, and the arts, solidifying his status as a polymath.

Resumo Jean-Martin Charcot, amplamente considerado como um proeminente fundador da neurologia moderna, fez contribuições substanciais para a compreensão e a caracterização de várias condições médicas. Seu foco inicial era a medicina interna, expandindo-se posteriormente para incluir a neuropatologia, a neurologia geral e, por fim, campos emergentes como a neuropsicologia e a neuropsiquiatria. Além disso, as buscas intelectuais de Charcot foram além da medicina, abrangendo pesquisas em história da arte, iconografia médica, sociologia, estudos religiosos e artes, solidificando seu status de polímata.

Low-cost versus high-fidelity pediatric simulators for difficult airway management training: a randomized study in continuing medical education

Abstract Background: High-fidelity (HF) pediatric patient simulators are expensive. This randomized study aimed to compare the quality and educational impact of a full-scale simulation workshop with an HF infant simulator (SimBaby™, Laerdal) or with a low-cost (LC) simulator composed of an inert infant manikin with SimBaby™ software that displays respiratory/hemodynamic parameters on a monitor for medical education in pediatric difficult airway management. Methods: After written informed consent, anesthetists and emergency or ICU physicians participated in teams (4 to 6 participants) in a training session that included direct participation and observation of two difficult intubation scenarios. They were randomized into two groups (HF group, n = 65 and LC group, n = 63). They filled out a simulation quality score (SQS, 0 to 50), self-evaluated their anesthetists' non-technical skills (ANTS) score (15 to 60), and an educational quality score (EQS, 0 to 60) immediately (T0, main criteria), as well as 3 (T3) and 6 (T6) months after the training session. Results: We enrolled 128 physicians. Direct participation SQS (39 ± 5 HF group versus 38 ± 5 LC group), observation SQS (41 ± 4 H F group versus 39 ± 5 LC group), ANTS scores (38 ± 4 HF group versus 39 ± 6 LC group), T0 SQS (44 ± 5 HF group versus 43 ± 6 LC group), T3 and T6 SQS were not different between groups. Conclusion: Our low-cost simulator should be suggested as a less expensive alternative to an HF simulator for continuing medical education in pediatric difficult airway management.

Multitasking in postanesthesia care unit following nurse interruptions, an analysis of the causes and consequences using classification tree: an observational prospective study

Abstract Background: Postanesthesia Care Unit (PACU) is an environment associated with an important workload which is susceptible to lead to task interruption (TI), leading to task-switching or concurrent multitasking. The objective of the study was to determine the predictors of the reaction of the nurses facing TI and assess those who lead to an alteration of the initial task. Methods: We conducted a prospective observational study into the PACU of a university hospital during February 2017. Among 18 nurses, a selected one was observed each day, documenting for each TI the reaction of the nurse (task switching or concurrent multitasking), and the characteristics associated with the TI. We performed classification tree analyses using C5.0 algorithm in order to select the main predictors of the type of multitasking performed and the alteration of the initial task. Results: We observed 1119 TI during 132 hours (8.5 TI/hour). The main reaction was concurrent multitasking (805 TI, 72%). The short duration of the task interruption (one minute or less) was the most important predictor leading to concurrent multitasking. Other predictors of response to TI were the identity of the task interrupter and the number of nurses present. Regarding the consequences of the task switching, long interruption (more than five minutes) was the most important predictor of the alteration of the initial task. Conclusions: By analysing the predictors of the type of multitasking in front of TI, we propose a novel approach to understanding TI, offering new perspective for prevention strategies.

Aspects particuliers des myomes utérins en IRM multimodale en milieu tropical / Features of uterine myomas explored with multimodal MRI in a tropical environment

Objectif. Décrire les caractéristiques de la prise en charge des myomes utérins dans une unité d'IRM multimodale en Afrique subsaharienne. Matériels et méthodes. Étude transversale descriptive rétrospective, d'une durée de 08 mois, réalisée au service d'imagerie médicale de l'hôpital mère enfant de Bingerville. Nous avons inclus les patientes dont le motif et ou les résultats des examens faisaient mention de myomes utérins. Les paramètres étudiés étaient l'âge des patientes, le motif d'examen et les résultats de l'examen d'IRM. Résultats. Nous avons recruté 103 patientes. Leur âge moyen était de 40 ans. Dans 95,1% des cas, les indications portaient sur la cartographie et l'exploration des myomes utérins déjà connus. Les myomes étaient de découverte fortuite dans 5% des cas. Les myomes étaient uniques dans 9% et en nombre supérieur à 5 dans 61% des cas. Ils étaient majoritairement hyalins, en isosignal homogène T1 FSE (86%), en hyposignal homogène T2 PROPELLER et diffusion (97%) avec rehaussement homogène (85%). Il y avait des complications dégénératives dans 12% des cas et mécaniques dans 3% des cas. Elles étaient corrélées à un nombre de myomes supérieur à 5 (p=0,05), mais pas à la taille des myomes ni à l'âge des patientes. Les pathologies pelviennes associées (53%) étaient : lésions ovariennes non tumorales (45%), adénomyose (30%) et cancer du col utérin (25%). Conclusion. À Abidjan, les myomes utérins sont une pathologie de la femme en activité génitale, en période préménopausique. L'IRM est utilisée quasi exclusivement en seconde intention après l'échographie pour la cartographie préopératoire ou pré embolisation. La découverte de pathologies associées dont le cancer du col, devrait faire préférer l'IRM pour toute exploration diagnostique et pré thérapeutique

Objective. To describe the characteristics of the management of uterine myomas in a multimodal MRI unit of Sub-Saharan Africa. Methods. This was a cross sectional retrospective descriptive study of eight months duration that was carried out in the medical imaging department of the mother and child hospital in Bingerville. The patients whose indications and/or results of the MRI mentioned uterine myomas were included. The parameters studied were the age of the patients, the reason and the results of the MRI examination. Results. We studied 103 patients. Their average age was 40 years. In 95.1% of the cases, the indications were for mapping and exploring already known uterine myomas. Incidental myomas accounted for 5%. The myomas were unique in 9% and more than 5 in 61%. They were mostly hyaline, in homogeneous T1 FSE isosignal (86%), in homogeneous T2 PROPELLER and diffusion hyposignal (97%) with homogeneous enhancement (85%). Degenerative complications were noted in 12% and mechanical complications in 3%. They were correlated with a number of myomas greater than 5 (p=0.05) but not with size of myomas or age of patients. Associated pelvic diseases (53,4%) were mainly non tumoral ovarian lesions (45%), adenomyosis (30%) and cervical cancer (25%). Conclusion. In our setting, uterine myomas affect mainly the genitally active woman in the premenopausal period. MRI is used almost exclusively as a second line after ultrasound, for preoperative or preembolization mapping. The discovery of associated pathologies, including cervical cancer, should make MRI preferable for all diagnostic and pre-therapeutic exploration.

Risk factors of transfusion transmissible infections among blood donors at Karongi Regional Centre for blood transfusion in Rwanda

Background Blood transfusion saves human lives, but also it can be a route for TransfusionTransmissible Infections (TTIs) including Human Immuno-Deficiency Virus (HIV), Hepatitis B virus (HBV), Hepatitis C virus (HCV), and syphilis. Objective This study aimed to explore the risk factors associated with TTIs among blood donors at Regional Centre for Blood Transfusion (RCBT) of Karongi, Rwanda. Methods This was a retrospective cross-sectional study design conducted among 36,708 blood donors from 2015 to 2019. Data were extracted from the system known as eProgesaused and the outcome variable were TTIs including HBV, HCV and HIV (measured using Enzyme Immuno-Assay/Chemiluminescence Immunoassay) and syphilis (determined by Rapid Reagin Plasma). Descriptive statistics was computed to describe the characteristics of the blood donors. Bivariate and multivariable logistic regression were performed to assess the risk factors associated with TTIs. P value less than 0.05 was considered statistically significant. Results The study found that the overall prevalence of TTIs was 2.1%, while the prevalences of HBV, HCV, HIV, and syphilis were 1.3%, 0.4%, 0.06%, and 0.34%, respectively. Multivariable analysis showed that the factors associated with HBV, HCV, HIV and syphilis were being male, age more than 25 years, being married, living in urban areas, first time blood donors and blood donors living in Rusizi, Rusizi, Nyamasheke and Karongi districts. Conclusion This study revealed that the most frequent TTI was HBV among blood donors and the main risk groups were males, age group of 26-35 years, married and first time donors. Hence, while developing health policies to reduce the effects of HBV infection on safe blood transfusion, these study findings should be taken into account.

Profil épidémiologique et mortalité due à la tuberculose dans la zone de Santé de Kamina, Province du Haut-Lomami, en Démocratique du Congo / Epidemiological profile and deaths related to TB disease in the Kamina´s Health Zone, Haut-Lomami Province, Democratic Republic of the Congo

Introduction: Était de décrire le profil épidémiologique, clinique et évolutif des patients tuberculeux suivis dans le milieu urbano-rural de Kaminaen République Démocratique du Congo (RDC). Méthodes: il s´agit d´une étude transversale par analyse rétrospective de dossiers des patients suivis pour tuberculose sur une période allant du 1er Janvier 2018 au 31 Décembre 2021. Résultats: sur un total de 612 échantillons analysés, 216 cas de tuberculose ont été confirmés par le laboratoire, soit une fréquence de 35,3 %. Notre échantillon était constitué de 138 hommes et 78 femmes, soit un sex-ratio de 1,77. L´âge moyen était de 35,37±18,14 années. La majorité des patients était dans la tranche d´âge comprise entre 21-40 ans. La profession libérale représentait 94,4 % de notre effectif, soit 204 patients. Il y a eu 63,4% des patients souffraient d´une tuberculose pulmonaire dont 70,9 % était guéris. La sérologie VIH était positive chez 6 patients, soit un taux de séroprévalence VIH de 2,77 %. Au total, 27 malades sont décédés sur les 612, soit un taux de mortalité de 4,41 %. C´est la tranche d´âge de malades ages de plus de 60 ans qui a connu une mortalitéélévée, soit 5 cas sur 20 (25 %), suivie de celle des malades ages de moins de 20 ans, 11 cas sur 49 (22,4 %). D´autre part, le résultat a montré un taux de mortalité plus élévé chez les tuberculeux séropositif, 33,3 %, contre 11.9 % chez les séronégatifs. Conclusion: ce rapport montre un taux élevé de tuberculose dans la zone de santé de Kamina ; il confirme le fait que la TB est endémique dans la région. Il est nécessaire d'améliorer les conditions de vie de la population et le système de santé local en ce qui concerne la prévention et la gestion de la TB afin de réduire sa morbi-mortalité.

Introduction: the purpose of this study was to describe the epidemiological, clinical and evolutionary profile of patients with tuberculosis followed in the urban-rural area of Kamina, Democratic Republic of the Congo (DRC). Methods: we conducted a cross-sectional study based on a retrospective analysis of the medical records of patients followed for tuberculosis over the period January 1, 2018 -December 31, 2021. Results: out of 612 samples analysed, 216 cases had received lab confirmation of tuberculosis, reflecting a rate of 35.3%. Our sample consisted of 78 women and 138 men (sex ratio 1.77). The average age of patients was 35,37±18.14 years. The majority of patients were in the age range 21-40 years. Self-employed people accounted for 94.4% of our workforce (204 patients); 63.4% of patients suffered from pulmonary tuberculosis, 70.9% of whom were cured. Serology test for HIV was positive in 6 patients (i.e. an HIV seroprevalence rate of 2.77%). In total, 27 patients out of 612 died, (i.e. a mortality rate of 4.41%). Patients aged over 60 had higher mortality rates (5 out of 20 cases; 25%), followed by patients under 20 (11 out of 49 cases; 22.4%). On the other hand, our results showed a higher mortality rate among HIV-positive patients with tuberculosis (33.3%, compared to 11.9% among HIV-negative patients). Conclusion: this study shows a high rate of tuberculosis in the Kamina health zone, confirming the fact that TB is endemic in the region. There is a need to improve the living conditions of the population and the local health system with regard to the prevention and management of TB in order to reduce morbidity and mortality

Facteurs associés à la non-observance des personnes vivant avec le VIH à la thérapie antirétrovirale / Factors associated with non-adherence to antiretroviral therapy among people living with HIV

Le VIH est un fléau le plus meurtrier de l'histoire et les antirétroviraux demeurent une panacée. Cette étude cherche à identifier les facteurs associés à l'inobservance des personnes vivant avec le VIH (PVVIH) à la thérapie antirétrovirale (TARV). Méthodes L'étude transversale analytique a été menée au sein de la structure ActionsCommunautaires SIDA/ Avenir Meilleur pour les Orphelins. Elle a ciblé les PVVIH éligibles. L'échantillonnage non probabiliste du type occasionnel a été utilisé par la technique d'interview. Les analyses bivariée et multivariée ont été utilisées ainsi que la régression logistique par le logiciel SPSS version 16.0. Résultats 72 PVVIH ont été interviewées dont l'âge moyen était de 44 ans, avec un sex ratio de 2 femmes pour 1 homme. L'observance thérapeutique était de 55,6 %. Les facteurs associés à l'inobservance sont l'anxiété (51,4%), le stress, la mauvaise relation avec le soignant (44,4%), l'oubli (37,5%), la démotivation sexuelle (20,8%), la conscience personnelle (19,4%) et le manque de confidentialité (13,9%). Conclusion L'inobservance à la thérapie antirétrovirale constitue une problématique dans le contexte de la RDC. Il est important d'insister sur l'éducation thérapeutique dans le succès de la thérapie antirétrovirale

Custo e tempo como obstáculos para uma alimentação saudável entre universitários / Cost and time as obstacles to healthy eating among university students

Introdução: O Guia Alimentar para a População Brasileira aborda a compreensão e superação de potenciais obstáculos para a adoção de uma alimentação saudável, entre eles, custo dos alimentos e tempo. Objetivo: Investigar a ocorrência de tempo e custo enquanto obstáculos para uma alimentação adequada e saudável e sua associação com fatores demográficos e socioeconômicos em universitários. Método: Estudo transversal realizado de abril a maio de 2019. Os desfechos avaliados foram custo e tempo. As variáveis de exposição foram sexo, idade, composição de moradia, trabalho remunerado, classe econômica e turno de estudo. Resultados: Participaram da pesquisa 207 estudantes. Sobre o custo dos alimentos, 76,3% já deixaram de comprar frutas, verduras e/ou legumes devido ao preço. Em relação ao tempo, 69,9% já deixaram de preparar alguma refeição por falta de tempo. Custo se associou com sexo masculino, idade igual ou superior a 30 anos, morar com amigos, estudar no período noturno e/ou estar na classe econômica mais baixa; já tempo se associou com sexo masculino, idade inferior a 30 anos, morar sozinho, estudar no período diurno/integral e/ou não trabalhar. Conclusão: Grande proporção dos universitários enfrenta dificuldades, relativas a tempo e custo dos alimentos, para ter uma alimentação adequada e saudável.

Introduction: The Dietary Guidelines for the Brazilian Population addresses the understanding and overcoming of potential obstacles to adopting a healthy diet, including food costs and time. Objective: To investigate the occurrence of time and cost as obstacles to adequate and healthy eating and its association with demographic and socioeconomic factors in university students. Method: Cross-sectional study carried out from April to May 2019. The evaluated outcomes were cost and time. Exposure variables were sex, age, household composition, paid work, economic class and study shift. Results: 207 students participated in the research. Regarding the cost of food, 76.3% have already stopped buying fruits and/or vegetables due to the price. Regarding time, 69.9% have already stopped preparing a meal due to lack of time. Cost was associated with male gender, age equal to or greater than 30 years, living with friends, studying at night and/or being in the lowest economic class; time has been associated with being male, younger than 30 years old, living alone, studying daytime/full time and/or not working. Conclusion: A large proportion of university students face difficulties, related to time and food costs, to have a proper and healthy diet.

The clinical impact of tricuspid regurgitation in patients with a biatrial orthotopic heart transplant / 医学前沿

In this study, we aim to elucidate the clinical impact and long-term course of tricuspid regurgitation (TR), taking into account its dynamic nature, after biatrial orthotopic heart transplant (OHT). All consecutive adult patients undergoing biatrial OHT (1984-2017) with an available follow-up echocardiogram were included. Mixed-models were used to model the evolution of TR. The mixed-model was inserted into a Cox model in order to address the association of the dynamic TR with mortality. In total, 572 patients were included (median age: 50 years, males: 74.9%). Approximately 32% of patients had moderate-to-severe TR immediately after surgery. However, this declined to 11% on 5 years and 9% on 10 years after surgery, adjusted for survival bias. Pre-implant mechanical support was associated with less TR during follow-up, whereas concurrent LV dysfunction was significantly associated with more TR during follow-up. Survival at 1, 5, 10, 20 years was 97% ± 1%, 88% ± 1%, 66% ± 2% and 23% ± 2%, respectively. The presence of moderate-to-severe TR during follow-up was associated with higher mortality (HR: 1.07, 95% CI (1.02-1.12), p = 0.006). The course of TR was positively correlated with the course of creatinine (R = 0.45). TR during follow-up is significantly associated with higher mortality and worse renal function. Nevertheless, probability of TR is the highest immediately after OHT and decreases thereafter. Therefore, it may be reasonable to refrain from surgical intervention for TR during earlier phase after OHT.

Targeting the HIV reservoir: chimeric antigen receptor therapy for HIV cure / 中华医学杂志(英文版)

Although antiretroviral therapy (ART) can reduce the viral load in the plasma to undetectable levels in human immunodeficiency virus (HIV)-infected individuals, ART alone cannot completely eliminate HIV due to its integration into the host cell genome to form viral reservoirs. To achieve a functional cure for HIV infection, numerous preclinical and clinical studies are underway to develop innovative immunotherapies to eliminate HIV reservoirs in the absence of ART. Early studies have tested adoptive T-cell therapies in HIV-infected individuals, but their effectiveness was limited. In recent years, with the technological progress and great success of chimeric antigen receptor (CAR) therapy in the treatment of hematological malignancies, CAR therapy has gradually shown its advantages in the field of HIV infection. Many studies have identified a variety of HIV-specific CAR structures and types of cytolytic effector cells. Therefore, CAR therapy may be beneficial for enhancing HIV immunity, achieving HIV control, and eliminating HIV reservoirs, gradually becoming a promising strategy for achieving a functional HIV cure. In this review, we provide an overview of the design of anti-HIV CAR proteins, the cell types of anti-HIV CAR (including CAR T cells, CAR natural killer cells, and CAR-encoding hematopoietic stem/progenitor cells), the clinical application of CAR therapy in HIV infection, and the prospects and challenges in anti-HIV CAR therapy for maintaining viral suppression and eliminating HIV reservoirs.

Strategies to Assess Occupational Exposure to Airborne Nanoparticles: Systematic Review and Recommendations

In many industrial sectors, workers are exposed to manufactured or unintentionally emitted airborne nanoparticles (NPs). To develop prevention and enhance knowledge surrounding exposure, it has become crucial to achieve a consensus on how to assess exposure to airborne NPs by inhalation in the workplace. Here, we review the literature presenting recommendations on assessing occupational exposure to NPs. The 23 distinct strategies retained were analyzed in terms of the following points: target NPs, objectives, steps, “measurement strategy” (instruments, physicochemical analysis, and data processing), “contextual information” presented, and “work activity” analysis. The robustness (consistency of information) and practical aspects (detailed methodology) of each strategy were estimated. The objectives and methodological steps varied, as did the measurement techniques. Strategies were essentially based on NPs measurement, but improvements could be made to better account for “contextual information” and “work activity”. Based on this review, recommendations for an operational strategy were formulated, integrating the work activity with the measurement to provide a more complete assessment of situations leading to airborne NP exposure. These recommendations can be used with the objective of producing homogeneous exposure data for epidemiological purposes and to help improve prevention strategies.

Total Transit Time and Probiotic Persistence in Healthy Adults: A Pilot Study

Background/Aims@#Motility, stool characteristics, and microbiota composition are expected to modulate probiotics’ passage through the gut but their effects on persistence after intake cessation remain uncharacterized. This pilot, open-label study aims at characterizing probiotic fecal detection parameters (onset, persistence, and duration) and their relationship with whole gut transit time (WGTT). Correlations with fecal microbiota composition are also explored. @*Methods@#Thirty healthy adults (30.4 ± 13.3 years) received a probiotic (30 × 10 9 CFU/capsule/day, 2 weeks; containing Lactobacillus helveticus R0052, Lacticaseibacillus paracasei HA-108, Bifidobacterium breve HA-129, Bifidobacterium longum R0175, and Streptococcus thermophilus HA-110). Probiotic intake was flanked by 4-week washout periods, with 18 stool collections throughout the study. WGTT was measured using 80% recovery of radio-opaque markers. @*Results@#Tested strains were detected in feces ~1-2 days after first intake and persistence after intake cessation was not significantly different for R0052, HA-108, and HA-129 (~3-6 days). We identified 3 WGTT subgroups within this population (named Fast, Intermediate, and Slow), which could be classified by machine learning with high accuracy based on differentially abundant taxa. On average, R0175persisted significantly longer in the intermediate WGTT subgroup (~8.5 days), which was mainly due to 6 of the 13 Intermediate participants for whom R0175 persisted ≥ 15 days. Machine learning classified these 13 participants according to their WGTT cluster (≥ 15 days or < 5 days) with high accuracy, highlighting differentially abundant taxa potentially associated with R0175 persistence. @*Conclusion@#These results support the notion that host-specific parameters such as WGTT and microbiota composition should be considered when designing studies involving probiotics, especially for the optimization of washout duration in crossover studies but also for the definition of enrollment criteria or supplementation regimen in specific populations.

Preoperative Fibrinogen Level and Postcardiac Surgery Morbidity and Mortality Rates

Background:High preoperative fibrinogen levels are associated with reduced bleeding rates after cardiac surgery. Fibrinogen is directly involved in inflammatory processes and is a cardiovascular risk factors. Whether high fibrinogen levels before cardiac surgery are a risk factor for mortality or morbidity remains unclear. Aims: This study aimed to examine the association between preoperative fibrinogen levels and mortality and morbidity rates after cardiac surgery. Settings and Design: This is a single?center retrospective study. Material and Methods: Patients (n = 1628) were divided into high (HFGr) and normal (NFGr) fibrinogen level groups, based on the cutoff value of 3.3 g/L, derived from the receiver operating characteristic (ROC) curve analysis. The primary outcome was the 30?day mortality rate. The rates of postoperative complications, including postoperative bleeding and transfusion rates, were examined. Statistical Analysis: Between?group comparisons were performed with the Mann–Whitney U test and Chi?squared test, as suitable. Model discriminative power was examined with the area under the ROC curve. Results: The HFGr and NFGr included 1103 and 525 patients, respectively. Mortality rate was higher in the HFGr than in the NFGr (2.7% vs. 1.1%, P = 0.04). The 12?h bleeding volume (280mL [195–400] vs. 305mL [225–435], P = 0.0003) and 24?h bleeding volume values (400mL [300–550] vs. 450 mL [340–620], P < 0.0001) were lower in the HFGr than in the NFGr. However, the rate of red blood cell transfusion during hospitalization was higher in the HFGr than in the NFGr (21.7% vs. 5.9%, P = 0.0103). Major complications were more frequent in the HFGr than in the NFGr. Conclusion: High fibrinogen levels were associated with reduced postoperative bleeding volume and increased mortality and morbidity rates

Les démoniaques dans l'art: Charcot and the "hysterical saints" / Les démoniaques dans l'art: Charcot e os "santos histéricos"

Abstract Professor Jean-Martin Charcot was the founder of clinical neurology and one of the prominent researchers in the field of hysteria in the 19th century. His bookLes démoniaques dans l'art is a representation of hysterical symptoms in religion and religious art. This paper aims to discuss Charcot's descriptions of hysteria in religion and his "hysterical saints".

Resumo Professor Jean-Martin Charcot foi o fundador da neurologia clínica e um dos pesquisadores mais proeminentes no campo da histeria durante o século XIX. Seu livroLes démoniaques dans l'art é uma representação dos sintomas histéricos na religião e arte religiosa. Esse artigo objetiva discutir as descrições de Charcot de histeria na religião e seus "santos histéricos".

The expulsion of Augusta Dejerine-Klumpke from the Salpêtrière Hospital: Pierre Marie's revenge / A expulsão de Augusta Dejerine-Klumpke do hospital Salpêtrière: a vingança de Pierre Marie

Abstract Augusta Dejerine-Klumpke was ahead of her time, with extensive contributions to the field of neuroanatomy and neurology, achieving international recognition. Despite her great contribution to world neurology, she was expelled from the Salpêtrière hospital in 1917, due to the rivalry and mutual hatred between Pierre Marie and his rival Jules Déjerine, her husband and collaborator.

Resumo Augusta Dejerine-Klumpke era uma pessoa à frente de seu tempo, com extensas contribuições para o campo da neuroanatomia e neurologia, alcançando reconhecimento internacional. Apesar de sua grande contribuição para a neurologia mundial, ela foi expulsa do hospital Salpêtrière em 1917, devido à grande rivalidade e ódio mútuo entre Pierre Marie e seu rival Jules Dejerine.

Hepatitis B Virus and Behavioural Risk among Blood Donors, Gabon

Background: In resource-limited setting, co-infection between HIV and hepatitis B virus (HBV) poses important public health considerations. This cross-sectional study was undertaken with the aim of determining HBV seroprevalence patterns in urban blood banks.Methods: A cross-sectional study was conducted at an urban blood bank setting. A total of 1610 blood donors were enrolled, and 283 consecutive plasma samples with unknown HBsAg status were selected for risks factors. HBV seroprevalence was based on the Chemiluminescence method (Cobas® e601, Roche). Potential risk factors associated with overt HBV infection were assessed by calculating the crude and adjusted odds ratio, 95% confidence intervalley (95% CI) and p values.Results: Of 1610 participants, overall rate seroprevalence of HBsAg was 5.5% (95% CI: 4.36%–6.58%) ranging from 0.06% (95% CI: 0-0.18) (HCV) to 0.12% (95% CI: 0-0.30)(Syphilis). Seroprevalence of infection increased in older age groups (20-39 years) but men had a statistically significant higher prevalence of overt HBV infection than women (P=0.0001). The multivariate model showed the following to be predictors of HBV infection: male gender (OR=2.5 (95% CI 1.14-5.58), P= 0.02), first-time donor status (OR = 11.06, (95% CI 5.34-22.9), P= 0.01) andresidence outside of Libreville (OR = 2.52, 95% CI 1.09-5.83), P=0.03).Conclusion: HB and co-infection are n o t common in Gabon. Intermediate seroprevalence was associated with male gender, first-time donor status and residence outside of Libreville. HCV andHBV infection among the younger age groups are becoming an alarming issue. Prevention and control of HBV infection are needed to reduce HBV transmission

Thomas Willis' legacy on the 400th anniversary of his birth / O legado de Thomas Willis no 400° aniversário de seu nascimento

Abstract To celebrate the 400th anniversary of the birth of Thomas Willis, his main contributions to the development of neurosciences, in particular neurology, are presented. Willis coined the term neurology and contributed significantly to the field of neuroanatomy, with the description of the arterial circle—located at the base of the brain—, which bears his name. He also described the striatum and cranial nerves. Furthermore, as a clinical neurologist, Willis participated in the description of various diseases, including myasthenia gravis and restless legs syndrome.

Resumo Na comemoração dos 400 anos de nascimento de Thomas Willis, são apresentadas as suas principais contribuições para o desenvolvimento das neurociências, em particular a neurologia. Willis cunhou o termo neurologia, contribuiu significativamente na área de neuroanatomia, com a descrição do círculo arterial localizado na base do cérebro, que tem o seu nome, além da descrição do corpo estriado, e de nervos cranianos. Da mesma forma, como neurologista clínico, Willis participou da descrição de várias doenças como a miastenia gravis e da síndrome das pernas inquietas, entre outras doenças.